Quite the title and quite cool to use. The Hybrid Protocol combines OpenID and OAuth in such a way that with one flow you can ask for authentication (and get someones account information, like name and email) and authorization (a token) for a set of services specified in a scope
Apart from providing a much cleaner user experience, it’ll save you a bunch of code. Especially via Omniauth.
UPDATE: My strategy just got merged into Omniauth’s master branch. So just use Omniauth instead of my fork.
To see how it works, try this demo.